Please provide example of using XML in building UI about cl-gtk4 HOT 8 CLOSED

This variant also gives the error

(let ((builder (gtk4:make-builder)))
  (builder-add-from-file builder
                         "/home/jacek/Programming/Lisp/lispy-experiments/exmal/builder.ui")
  )

Understood, I will delve deeper into this issue later.

from cl-gtk4.

You usually don't need to worry about pointer issues in Lisp because gobject-introspection automatically handles object ownership and memory. Your code can be simply translated as:

(let ((builder (gtk:make-builder)))
  (gtk:builder-add-from-file builder "/path/to/ui/file")
  (let ((window (gtk:builder-get-object builder "window")))
    (setf (gtk:window-application window) gtk:*application*)))

from cl-gtk4.

Thank you for the explanation. I will try it and let you know if I have any problems.

from cl-gtk4.

2 differennt versions of SBCL give me the error:

Unhandled memory fault at #x0.
[Condition of type SB-SYS:MEMORY-FAULT-ERROR]

(builder (gtk4:make-builder :filename "/home/jacek/Programming/Lisp/lispy-experiments/exmal/builder.ui"))

from cl-gtk4.

2 differennt versions of SBCL give me the error:

Unhandled memory fault at #x0.
[Condition of type SB-SYS:MEMORY-FAULT-ERROR]

(builder (gtk4:make-builder :filename "/home/jacek/Programming/Lisp/lispy-experiments/exmal/builder.ui"))

It seems like a NPE. Did you run the code after the initialization of GTK4?

from cl-gtk4.

This variant also gives the error

(let ((builder (gtk4:make-builder)))
  (builder-add-from-file builder
                         "/home/jacek/Programming/Lisp/lispy-experiments/exmal/builder.ui")
  )

from cl-gtk4.

I still cannot reproduce your issue. However, I suspect that you are not loading the .ui file while running the GTK application. I have written an example for your reference:

from cl-gtk4.

Thank you for the example

from cl-gtk4.